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Transmission and drivetrainPart report

2004 Toyota 4RUNNER Transmission and drivetrain Problems

Complaints
36about this part
Share
5%of 678 total for the year
Median mileage
72,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 36 complaints about the transmission and drivetrain of the 2004 Toyota 4RUNNER, 5% of the 678 complaints for this model year. Where a mileage was given, the median is 72,000 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Transmission would not shift in motion leaving from a stop sign. I later found out my transmission lines had corroded away leaking a large amount of transmission fluid. After replacing brakes and adding brake fluid I noticed the brake fluid had leaked from bottom. I had to replace all brake lines and fittings due to corrosion.”

NHTSA complaint #11322167, filed 2020-04, 190,000 miles

“1. There is a serious clunk noise when taking my foot off the brake from a stop. 2. My vehicle makes a loud noise when stopped at an intersection combined with a surging forward as if being rear ended. 3. When applying the brakes, after it has been sitting for a number of hours, it shakes and bangs extremely violently.”

NHTSA complaint #10217737, filed 2008-02, 2,000 miles

“Driving down the local highway, smelled transmission fluid burning. Pulled over to find transmission fluid leaking from under the radiator area. I was near the garage that works on the vehicle and was able to drive there. Skid plate was removed and the transmission lines that run along the radiator support frame rusted through. The mechanic servicing the vehicle said I was lucky, that this could have caused transmission failure and or fire in the engine compartment while driving. …”

NHTSA complaint #10658731, filed 2014-11, 85,400 miles

“I was driving on the freeway at 60 MPH and tapped on the gas pedal and it became stuck and rapidly accelerated the car. I had to shift the car to neutral and tap the brakes in order to get the gas pedal unstuck. The car had been on cruise control earlier but at the time that the gas pedal was stuck cruise control was off. Hitting the brake did not immediately disengage the gas pedal as would be expected if it was on cruise control.”

NHTSA complaint #10333845, filed 2010-05, 107,000 miles

“I was going 5 MPH and hit my brakes. The control arm was ripped from the frame due to rot/rust. Toyota is aware of this problem for 4runners, but has only offered assistance on the tacoma and tundras. The body of my vehicle has no rust anywhere, and the mileage is extremely low. I cannot even find a mechanic to fix it, because the frame is so bad. I was told, if it gets fixed, another part of the frame may fail when I'm cruising on the highway and people could get hurt or killed. No mechanic wants this liability in doing a repair.”

NHTSA complaint #10731909, filed 2015-07, 72,000 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2026343%
202523%
202326%
202213%
202113%
202013%
201946%
201835%
201713%
201667%
201545%
201411%
201313%
201164%
201053%
20091045%
20082728%
2007117%
2006308%
2005256%
2004365%
2003396%
20023315%
20013217%
2000429%
1999237%
1998125%
19972510%
199653%
1995148%
199435%
199336%
199248%
1991512%
19901418%
1988222%
1987240%

Other parts of the 2004 Toyota 4RUNNER

Body and structure
310 complaints
Other or unknown
121 complaints
Suspension
113 complaints
Brakes
82 complaints
Air bags
37 complaints
Vehicle speed control
34 complaints
Steering
32 complaints
Engine cooling
25 complaints
Electrical system
22 complaints
Engine
18 complaints
Electronic stability control
15 complaints
Seats
14 complaints

← All problems reported for the 2004 Toyota 4RUNNER

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology